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Table 2 Incidence rate ratios of admission and mortality risk according to HD frequency in the combined and transfer groups

From: Is combined peritoneal dialysis and hemodialysis redundant? A nationwide study from Taiwan

Outcome

Event

Person-years

Rate

SHR (95% CI)

p-value

Admission

 Combined group

  Overall (N = 688)

646

328

1969.17

1.06 (0.95–1.19)

0.32

  HD sessions = 2 (N = 350)

328

209

1570.58

0.96 (0.84–1.10)

0.56

  HD sessions = 3 (N = 28)

26

13

2059.98

1.11 (0.74–1.66)

0.61

  HD sessions = 4 (N = 310)

292

107

2739.33

1.18 (1.03–1.35)

0.02

Transfer group

628

379

1656.15

Ref.

 

Outcome

Event

Person-years

Rate

HR (95% CI)

p-value

Mortality

 Combined group

  Overall (N = 688)

145

2413

60.09

1.02 (0.80–1.30)

0.88

  HD sessions = 2 (N = 350)

79

1430

55.23

1.02 (0.77–1.37)

0.88

  HD sessions = 3 (N = 28)

6

116

51.66

1.31 (0.57–2.99)

0.52

  HD sessions = 4 (N = 310)

60

867

69.24

1.00 (0.73–1.36)

0.98

Transfer group

155

2257

68.68

Ref.

 
  1. Rate, per 1000 person-years; SHR subdistribution HR
  2. Adjusted for age, sex, diabetes, chronic heart failure, Charlson comorbidity index, recent peritonitis, and type of vascular access for HD